OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:e6:0a:93:53:37:b0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:62:99:9e:96:58:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:36:e4:eb:25:92:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:14:45:bd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:14:45:bd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
